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Abstract: ABSTRACT: Double-parton scattering is investigated using events with a Z boson and jets. The Z boson is reconstructed using only the dimuon channel. The measurements are performed with proton-proton collision data recorded by the CMS experiment at the LHC at s? = 13 TeV, corresponding to an integrated luminosity of 35.9 fb?1 collected in the year 2016. Differential cross sections of Z+ ?1 jet and Z+ ?2 jets are measured with transverse momentum of the jets above 20 GeV and pseudorapidity |?| < 2.4. Several distributions with sensitivity to double-parton scattering effects are measured as functions of the angle and the transverse momentum imbalance between the Z boson and the jets. The measured distributions are compared with predictions from several event generators with different hadronization models and different parameter settings for multiparton interactions. The measured distributions show a dependence on the hadronization and multiparton interaction simulation parameters, and are important input for future improvements of the simulations.
Fuente: Journal of High Energy Physics, Vol. 2021, Num.10, Art. Num. 176
Editorial: Springer Verlag
Fecha de publicación: 21/10/2021
Nº de páginas: 43
Tipo de publicación: Artículo de Revista
DOI: 10.1007/JHEP10(2021)176
ISSN: 1126-6708,1029-8479
Url de la publicación: https://doi.org/10.1007/JHEP10(2021)176
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TUMASYAN, A.
JAVIER ANDRES BROCHERO CIFUENTES
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
BARBARA CHAZIN QUERO
JORGE DUARTE CAMPDERROS
MARCOS FERNANDEZ GARCIA
CELIA FERNANDEZ MADRAZO
PEDRO JOSE FERNANDEZ MANTECA
ANDREA GARCIA ALONSO
GERVASIO GOMEZ GRAMUGLIO
CELSO MARTINEZ RIVERO
PABLO MARTINEZ RUIZ DEL ARBOL
FRANCISCO MATORRAS WEINIG
PABLO MATORRAS CUEVAS
JONATAN PIEDRA GOMEZ
CEDRIC GERALD PRIEELS
MARIA TERESA RODRIGO ANORO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
IVAN VILA ALVAREZ
JESUS MANUEL VIZAN GARCIA
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